If Alexi Kondratiev’s The Apple Branch is correct, on the Coligny calendar there was a feast on the 15th of Cantli called tiocobrextion—possibly from *teg(es)okomrextion, meaning “setting the house in order”, and falling somewhere between the Autumnal Equinox (ca. Sept 20) and Michaelmas (Sept 29). It was a time for settling up for the year, harvesting, and celebrating with a large communal feast—we still see this in the (admittedly later) American feast of Thanksgiving.